I've had a different experience worth sharing.
Like others, I left my iPhone in the taxi. I asked for a receipt, which listed the taxi number. Borrowing a friend's phone, I tried calling my phone number several times but no one answered. I filed a report on the hotline 1872 920 and obtained a case number. They said once they have information they will contact me.
About fifteen minutes later I called my phone again and the driver picked up and said he is now going to the airport. For the rest of the day I was in meetings and unable to follow-up until after 6pm. At that time, I called all of the
red taxi companies I could find and each said that taxi was not working for their company.
Calling my phone again, the power was off and I figured this meant my phone wouldn't be retrievable. As a last resort, I went to the police station and filed a report. After taking down all the information I had (including serial, IMEI, etc.), and noting the driver picked up one of my calls which confirmed he had possession of my phone, their back room checked a few things while I waited. The police did contact the company responsible for the taxi, but because it was after hours, the company needed to respond later with the driver's information.
After about 15 minutes the police officer called me back up to the counter and said I was very lucky because the phone had been turned in to the Lost & Found department at another police station and that during the following day during business hours I could pick it up if I supplied proper proof that the phone was mine.
Here are the tips I have from this experience that I think will help others have success in retrieving their lost phones:
1. Keep phone sales receipts and original boxes - both of these can prove you own the lost phone when retrieving from the police station.
2. Record the phone's serial number, IMEI, ICCID, make, model, and any other identifying information in a safe location. This enabled the policy officer to identify that a phone turned in to another station was mine. It would also be important information for making an insurance claim.
3. Always get a receipt from the taxi, even in a rush. This contains the date, time, and taxi number unique to the driver which would be useful in recovering the phone or in a court case.
4. Report to the taxi hotline - they fax this information to all taxi companies, which may enable you to retrieve your phone.
5. Act quickly soon after you lose your phone.
For iPhone / iPod / iPad owners:
6. Install and configure the Find My iPhone program, iCloud, and turn on location services. Test to ensure this is working before you lose your phone! If I were able to use the internet soon after I lost my phone, this would allow me to wipe the phone, erasing all information. In my case, I got on the internet 8 hours after I lost my phone, at which point it had already been turned off. The phone itself was left on for at least 2 hours after I lost it, which would have been enough time to wipe the phone.
7. Turn on automatic lock - this requires you to enter a password after a specified amount of time. This does not prevent anyone from accessing your data (hence the need to wipe, as per above), but it does stop immediate use of your phone. Mine is set to lock after 1 min.
8. Use a program like 1Password to keep secure information encrypted on your phone, like passwords and account numbers. Because I use this, I knew that if the phone fell into malicious hands, the most information a person would have is my email, photos, music, notes, contacts, and other program data. Obviously this is more than I would want to lose, but it's not a huge security risk.
I think what I've learned above can greatly increase the chances of retrieving your phone, and minimizing the damage and risk of loss. Ultimately, the main reason my phone was returned was because of the honest taxi driver, but every other action I took enabled the fullest support by the taxi company hotline, the policy, and insurance, if applicable.
I'd like to reward the taxi driver, but ironically, I don't have any way to contact him.
Hope others can be as lucky as I was!